221489175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 419973120

約数和(自身を除く): 198483945

約数列:

[1, 3, 5, 15, 17, 19, 25, 41, 51, 57, 75, 85, 95, 123, 205, 223, 255, 285, 323, 425, 475, 615, 669, 697, 779, 969, 1025, 1115, 1275, 1425, 1615, 2091, 2337, 3075, 3345, 3485, 3791, 3895, 4237, 4845, 5575, 8075, 9143, 10455, 11373, 11685, 12711, 13243, 16725, 17425, 18955, 19475, 21185, 24225, 27429, 39729, 45715, 52275, 56865, 58425, 63555, 66215, 72029, 94775, 105925, 137145, 155431, 173717, 198645, 216087, 228575, 284325, 317775, 331075, 360145, 466293, 521151, 685725, 777155, 868585, 993225, 1080435, 1800725, 2331465, 2605755, 2953189, 3885775, 4342925, 5402175, 8859567, 11657325, 13028775, 14765945, 44297835, 73829725, 221489175]

約数ペア:

[(1, 221489175), (3, 73829725), (5, 44297835), (15, 14765945), (17, 13028775), (19, 11657325), (25, 8859567), (41, 5402175), (51, 4342925), (57, 3885775), (75, 2953189), (85, 2605755), (95, 2331465), (123, 1800725), (205, 1080435), (223, 993225), (255, 868585), (285, 777155), (323, 685725), (425, 521151), (475, 466293), (615, 360145), (669, 331075), (697, 317775), (779, 284325), (969, 228575), (1025, 216087), (1115, 198645), (1275, 173717), (1425, 155431), (1615, 137145), (2091, 105925), (2337, 94775), (3075, 72029), (3345, 66215), (3485, 63555), (3791, 58425), (3895, 56865), (4237, 52275), (4845, 45715), (5575, 39729), (8075, 27429), (9143, 24225), (10455, 21185), (11373, 19475), (11685, 18955), (12711, 17425), (13243, 16725)]